function dispForm(str)
{
	var xmlhttp;
	if (window.XMLHttpRequest)
	{// code for IE7+, Firefox, Chrome, Opera, Safari
		xmlhttp=new XMLHttpRequest();
	}
	else
	{// code for IE6, IE5
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlhttp.onreadystatechange=function()
	{
		var text=xmlhttp.responseText;
		if (xmlhttp.readyState==4 && xmlhttp.status==200)
		{
		document.getElementById("main").innerHTML=text;
		}
	};
	
	xmlhttp.open("GET","Request.php?form_id="+str,true);
	xmlhttp.send();
}